.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 99;
}
.header-nav__trigger {
  position: relative;
  cursor: pointer;
  z-index: 1;
}
.header-nav__trigger::after {
  content: "ひらく";
  padding: 0.25rem;
  line-height: 1;
  font-size: 8px;
  font-weight: bold;
  background-color: var(--black);
  color: var(--white);
}
:lang(en-US) .header-nav__trigger::after, :lang(en-US) .header-nav__trigger.active::after {
  content: none;
}
:lang(en-US) .header-nav__trigger::before {
  content: "OPEN";
  padding: 0.25rem;
  line-height: 1;
  font-size: 8px;
  font-weight: bold;
  background-color: var(--black);
  color: var(--white);
}
.header-nav__trigger.active::after {
  content: "とじる";
}
:lang(en-US) .header-nav__trigger.active::before {
  content: "CLOSE";
}
.header-nav__content {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--white);
  padding-top: 120px;
  transition-property: visibility, opacity, transform;
  transition-timing-function: ease;
  transition-duration: 300ms;
}
@media screen and (min-width: 768px) {
  .header-nav__content {
    padding-top: 140px;
  }
}

.chatbot-help {
  position: fixed;
  bottom: 180px;
  right: 20px;
  z-index: 102;
}
.chatbot-help__trigger {
  cursor: pointer;
  border-radius: 9999px;
  background-color: var(--white--opac-70);
  box-shadow: var(--shadow-card);
  width: 3rem;
  height: 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  -webkit-backdrop-filter: var(--filter-blur);
  backdrop-filter: var(--filter-blur);
}
.chatbot-help__content {
  -webkit-backdrop-filter: var(--filter-blur);
  backdrop-filter: var(--filter-blur);
  background-color: var(--white--opac-70);
  box-shadow: var(--shadow-card);
  padding: 1.25rem;
  border-radius: 1rem;
  width: 240px;
}
@media screen and (min-width: 768px) {
  .chatbot-help {
    bottom: 250px;
    right: 40px;
  }
}